How can I compare screenshots using Puppeteer?

How can I compare screenshots using Puppeteer?

You can use Puppeteer to take screenshots of web pages and then compare them using image comparison libraries like pixelmatch.

Can you show me a code example for taking screenshots?

Sure! Here's a simple example:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await page.screenshot({ path: 'example.png' });
  await browser.close();
})();

What library should I use for comparing the screenshots?

You can use the 'pixelmatch' library for comparing images. It highlights the differences between two images.

How do I install pixelmatch?

You can install pixelmatch using npm with the command: npm install pixelmatch.